Towbar connection to CanBus

[dufferum]

I`m looking to fit a towbar to my 2007 A4 Avant 2.0Tdi, does anyone know
what the colour code is for the CAN system?

[Ben]

If you are fitting vehicle specific electronics, it should just plug in to the appropriate socket. And coding with vcds.

[dufferum]

I am fitting a Towequipe towbar and the instructions for the car specific relay suggest that it should be connected to the CANBUS wires coming from the ignition using `Scotchblocks`! just needed to confirm the colours for the CAN system?

[patrickhorton]

See this thread I posted for some pointers. I still haven't located the source of the pdf which I followed to do the job.
Towbar electrics help (http://www.vwaudiforum.co.uk/forum/showthread.php?100605-Towbar-electrics-help&highlight=towbar)

I'd rate this as definitely more than an afternoon's tinkering. Put plenty of time aside to do a nice job.

Patrick

[patrickhorton]

The excellent pdf guide has a link in this thread: http://www.vwaudiforum.co.uk/forum/showthread.php?85521-quot-How-To-quot-remove-the-rear-bumper-off-an-A4-B7-Avant-S-line-and-fit-a-removable-tow-bar-and-reversing-sensors (go to post number 21).

Sadly it no longer works. I have a copy but not sure if I can post it as it is someone elses hard work. Could mail it if anyone is really interested.